DE605141C - Capacitor box for a larger number of capacitor elements connected in parallel or in series, lying next to one another in plan and arranged at an angle to one another - Google Patents

Description

Capacitor box for a larger number of parallel or series-connected, side by side in plan and at an angle to each other In recent times, capacitor elements are often used for power engineering purposes Capacitors, in particular wound capacitors, are used. Shall the capacitors are dimensioned for larger reactive powers, so are several capacitor elements connected in parallel or in series. To the cost of such, of many side by side arranged capacitors to keep existing capacitor banks low all capacitors are housed in a single housing. According to experience however, the cooling of the enzehl @ en capacitor elements causes difficulties in this case.

With two elements the difficulties are relatively minor. Both elements have already been put together in such a way that they are connected to the narrow sides collide. There is then only one narrow side for each element for cooling lost. If, however, there are more than two capacitor elements, when they are lined up next to one another all elements with the narrow sides of the condenser box too long or else if several parallel rows are arranged, the cooling is insufficient. One has therefore already proposed to arrange the elements at an angle to each other. Included the walls of the condenser box have been slightly bent at the angles. Even this arrangement is with regard to the dissipation of heat from the condensate gate elements only inadequate. This is all the more true as in this arrangement the cavities between box. and capacitor elements with poor heat conductivity Has filled insulating material.

By. the invention should be made possible in a common Box arranged capacitor banks, which from a larger number. from parallel or series-connected capacitor elements are assembled and in plan are arranged next to each other and at an angle to each other, to cool better, than was previously possible. According to the invention, this is to be achieved by that the common box with regard to the arrangement of the capacitor elements is designed so that each capacitor element is directly connected to at least two The sides of the parallel walls of the condenser box are opposite each other at the same distance, which are in contact with the outside air.

The capacitor box can be designed in various ways be, and although it can have a cross or star-shaped plan obtain. In the case of particularly large capacitor batteries, the box can be laid out in plan be designed as a double cross or honeycomb.

Several exemplary embodiments of the invention are shown in the drawing shown. Fig. I shows a simple box, the plan of which the shape -a simple cross. The box walls are denoted by i, and 2 are the capacitor elements. In this design there are three sides of the condenser element walls of the boiler opposite, which are in contact with the outside air. The one in the middle of the cross lying free space can be beneficial. for the power supply lines from the bushings of the capacitor box can be used for the individual capacitor elements.

In the embodiment shown in Figure 2, the plan has the shape of a double cross.

Fig.3 shows the plan of a capacitor box with a star-shaped Cross-section. When in Fig. Q. illustrated embodiment is the plan honeycomb-shaped.

It should also be noted that several Capacitor elements can be placed one above the other.

Claims (3)

PATENT CLAIM: i. Condenser box for a larger number in parallel or connected in series, lying next to one another in plan and at an angle capacitor elements arranged to one another, characterized in that the capacitor box is designed with regard to the arrangement of the capacitor elements that each capacitor element directly on at least two sides at the same distance opposite parallel walls of the condenser box, which with the outside air stand in touch. 2. capacitor box according to claim i, characterized in that that the plan of the condenser box has the shape of a cross or star and that the arms of the cross or the star rays are parallel-walled. 3. capacitor box according to claim i, characterized in that the plan of the Capacitor box is honeycomb.